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Vibration and modal analysis of a rotating disc using high-speed 3D digital image correlation

Mechanical systems and signal processing, 2019
Rotating structures are of interest in many engineering fields, where knowing their dynamic behaviour is important to prevent undesired operating states.
R. Huňady, P. Pavelka, P. Lengvarský
semanticscholar   +1 more source

Protect Digital Medical Images Based on Matrix Norm Quantization of Digital Watermarking Algorithm

2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010
As a protection and authentication technology, digital watermarking technology has been used in the medical image field. In this paper, a digital watermarking algorithm is proposed based on integer wavelet transform to protect digital medical images and estimate its integrity and authenticity.
Xin Liu, Xiaoqi Lv, Qiang Luo
openaire   +1 more source

A COMSOL novel micromirror matrix model for digital image display

Engineering Research Express
Abstract Digital micromirror devices (DMD) have gained significant attention in various scientific and industrial domains due to their potential for spatial light and laser modulation. However existing micromirrors designs often face limitations in terms of rotation angles, voltage consumption, and stability time for some type of ...
Fares Karaoui   +2 more
openaire   +1 more source

Learning object for contextualization of matrix operations in digital image processing through programming

Proceedings of the Seventh International Conference on Technological Ecosystems for Enhancing Multiculturality, 2019
Currently, some students do not understand correctly certain mathematical concepts. Matrices and their operations are some example of this. This can be related to the lack of contextualization in some area of interest, which makes the student thinks that the concept learning without applications is meaningless.
Diego Mauricio Galindo Cortes   +2 more
openaire   +1 more source

Hybrid image processing approach for autonomous crack area detection and tracking using local digital image correlation results applied to single-fiber interfacial debonding

Engineering Fracture Mechanics, 2019
Local digital image correlation is a popular method for accurate full field displacement measurements. However, the technique struggles at autonomously tracking emerging and propagating cracks.
I. Tabiai   +6 more
semanticscholar   +1 more source

Geocoding the DTEMS digital terrain matrix and radar image products

1997 IEEE Aerospace Conference, 1997
The Digital Terrain Elevation Mapping System (DTEMS) is a system that will combine SAR interferometry with high altitude flight operations in a NASA ER-2 for large area high precision digital terrain matrix (DTM) and polarimetric synthetic aperture radar (SAR) imagery collection. DTEMS will provide a national geocoded DTM with less than one meter error
openaire   +1 more source

Digital image security using Matrix and non-linear Pixel Transformation

2011 International Conference on Computer, Communication and Electrical Technology (ICCCET), 2011
With the increased use of digital images in numerous fields, especially sensitive ones like medicine and military where confidentiality is extremely important, their encryption has become mandatory. This paper depicts our proposed digital image encryption technique which employs two types of non-linear pixel transformation and the traditional Hill ...
J. Mohamedmoideen Kader Mastan   +2 more
openaire   +1 more source

Damage and failure analysis of a SiCf/SiC ceramic matrix composite using digital image correlation and acoustic emission

Ceramics International, 2021
Fei Wang   +8 more
semanticscholar   +1 more source

Determining tab material for tensile test of CFRP laminates with combined usage of digital image correlation and acoustic emission techniques

, 2019
Determining the precise tensile strength of carbon fiber reinforced polymer matrix composites is very important due to their anisotropic properties. In this study, tensile tests are carried out on carbon fiber reinforced laminates with glass and carbon ...
I. E. Tabrizi   +6 more
semanticscholar   +1 more source

Digital image encryption based on Gauss-Markov random encryption matrix

2011 International Conference on Multimedia Technology, 2011
To solve the problem of encryption matrix is difficult to construct, a novel encryption matrix constructing algorithm is proposed in this paper. First, a stochastic sequence is generated by Gauss-Markov process. Then, convert the elements of this sequence into integers and multiple the selected matrices with determinant D=1 each other by using tensor ...
null Ajin Zou, null Xiuchun Xiao
openaire   +1 more source

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